package edu.sctu.practice.class02.yangyiqing.exam.test22;

/**
 * Created by Administrator on 2015/11/3 0003.
 */
public class InterfaceDemo {
    public static void main(String[] args) {
        Bike bike = new Bike();
        bike.start(20);
        bike.stop(0);

        Bus bus = new Bus();
        bus.start(50);
        bus.stop(0);
    }
}
